Low voltage ultraviolet HVAC light

Abstract

This UV light system for use in a central air handling unit of a heating or air conditioning system includes a UV light source and is adapted for operation on, and receives power from, an approximately 24VAC low voltage power supply for a thermostat of the heating or air conditioning system. In its preferred embodiments it is provided with a mounting system including a bendable “Z” shaped mounting bracket, which bracket can be bent to multiple angles allowing the UV light source to be positioned in numerous ways within the central air handling unit. It is preferably packaged in a cylindrical packing case where the elongate cylindrical emitter portion of the UV light source is aligned with the axis of the case.

1. An apparatus for air purification, comprising: a UV light system for use in a central air handling unit of a heating or air conditioning system, which UV light system includes a UV light source; wherein said UV light system is adapted for operation on approximately 24 VAC low voltage power from the said heating or air conditioning system; wherein said UV light source is provided with a mounting system including a bendable “Z” shaped mounting bracket, which bracket is positionable such that the UV light source can be positioned in numerous ways within the central air handling unit. 
     
     
       2. The apparatus described in  claim 1 , wherein said UV light system includes a power supply ballast for said UV light, which power supply ballast includes an electronic circuit adapted to receive said low voltage power in a range of approximately 18 VAC to 32 VAC, and operate said UV light source thereby. 
     
     
       3. The apparatus described in  claim 1 , wherein said UV light system includes a power supply ballast for said UV light, which power supply ballast includes an electronic circuit adapted to receive said low voltage power in a range of approximately 60 VAC to operate said UV light source thereby. 
     
     
       4. The apparatus described in  claim 3 , wherein said electronic circuit is potted to preserve it from moisture conditions in a heating or air conditioning system. 
     
     
       5. The apparatus described in  claim 1 , wherein said UV light system includes a power supply ballast for said UV light, which power supply ballast includes an electronic circuit adapted to receive said low voltage power and provide approximately 60 VAC to operate said UV light source thereby. 
     
     
       6. The apparatus described in  claim 1 , wherein said electronic circuit is potted to preserve it from moisture and conditions in a heating or air conditioning system. 
     
     
       7. The apparatus described in  claim 1 , wherein said UV light source produces light in the UV-C spectrum, which special range includes light having a wavelength of 254 nm and is germicidal. 
     
     
       8. The apparatus described in  claim 7 , wherein said UV light source produces light in the OV-O spectrum, which spectral range includes light having a wavelength of 185 nm and reduces odors. 
     
     
       9. The apparatus described in  claim 8 , wherein said UV light source is constructed so that approximately no more than 10% of its production is in the UV-O spectrum. 
     
     
       10. The apparatus described in  claim 1 , wherein said UV light source produces light in the OV-O spectrum, which spectral range includes light having a wavelength of 185 nm and reduces odors. 
     
     
       11. The apparatus described in  claim 1 , wherein said bendable “Z” shaped mounting bracket can be bent to multiple angles allowing the UV light source to be positioned in numerous ways within the central air handling unit. 
     
     
       12. The apparatus described in  claim 1 , wherein the UV light source includes an elongate cylindrical portion and said apparatus for air purification includes and is incorporated into a cylindrically shaped packing case, which cylindrical shape defines a central axis, and said elongate cylindrical portion is aligned with said axis. 
     
     
       13. The apparatus described in  claim 1 , wherein said “Z” shaped mounting bracket has a base with a removable magnet, such that said “Z” shaped mounting bracket can be affixed to an inner side of a ferrous metal portion of a central air handling unit by its base using said magnet and can be affixed to an inner side of a central air handling unit by its base without using said magnet. 
     
     
       14. The apparatus described in  claim 1 , wherein said UV light source is provided with an annular mounting flange at its base, allowing the light source to be mounted directly to and through a hole in a wall of a central air handling unit and to be mounted to said “Z” shaped mounting bracket through a hole provided in an end of said “Z” shaped mounting bracket. 
     
     
       15. An apparatus for air purification, comprising: a UV light system for use in a central air handling unit of a heating or air conditioning system, which UV light system includes a UV light source; and wherein the UV light source includes an elongate cylindrical portion and said apparatus for air purification includes and is incorporated into a cylindrically shaped packing case, which cylindrical shape defines a central axis, and said elongate cylindrical portion is aligned with said axis; wherein said UV light system is adapted for operation on approximately 24 VAC low voltage power from the said heating or air conditioning system; and wherein said UV light source is provided with a mounting system including a bendable “Z” shaped mounting bracket, which bracket can be bent to multiple angles allowing the UV light source to be positioned in numerous ways within the central air handling unit. 
     
     
       16. The apparatus described in  claim 15 , wherein a plurality of said cylindrical packing cases can be nested side-by-side in a packing crate with an end of said cylindrical packing cases exposed. 
     
     
       17. The apparatus described in  claim 15 , wherein said UV light system includes a power supply ballast for said UV light, which power supply ballast includes an electronic circuit adapted to receive said low voltage power in a range of approximately 18 VAC to 32 VAC, and provide approximately 60 VAC to operate said UV light source thereby. 
     
     
       18. The apparatus described in  claim 15 , wherein said “Z” shaped mounting bracket has a base with a removable magnet, such that said “Z” shaped mounting bracket can be affixed to an inner side of a ferrous metal portion of a central air handling unit by its base using said magnet and can be affixed to an inner side of a central air handling unit by its base without using said magnet.